W78L032A24PL Nuvoton Technology Corporation of America, W78L032A24PL Datasheet
W78L032A24PL
Specifications of W78L032A24PL
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W78L032A24PL Summary of contents
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Table of Content- 1. GENERAL DESCRIPTION ......................................................................................................... 2 2. FEATURES ................................................................................................................................. 2 3. PIN CONFIGURATIONS ............................................................................................................ 3 4. PIN DESCRIPTION..................................................................................................................... 4 5. BLOCK DIAGRAM ...................................................................................................................... 6 6. FUNCTIONAL DESCRIPTION ................................................................................................... 7 7. ABSOLUTE MAXIMUM RATINGS ............................................................................................. CHARACTERISTICS............................................................................................................ ...
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... Boolean processor Six-source, two-level interrupt capability Built-in power management Packages: − DIP 40: W78L32-24 − PLCC 44: W78L32P-24 − QFP 44: W78L32F-24 − Lead Free (RoHS) DIP 40: − Lead Free (RoHS) PLCC 44: W78L032A24PL, W78M032A24PL − Lead Free (RoHS) PQFP 44: W78L032A24FL, W78M032A24FL W78L32/W78L032A/W78M032A W78L032A24DL, W78M032A24DL - 2 - ...
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PIN CONFIGURATIONS 40-Pin DIP (W78L32) 44-Pin PLCC (W78L32P ...
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PIN DESCRIPTION P0.0−P0.7 Port 0, Bits 0 through 7. Port bidirectional I/O port. This port also provides a multiplexed low order address/data bus during accesses to external memory. P1.0−P1.7 Port 1, Bits 0 through 7. Port ...
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PSEN Program Store Enable Output, active low. PSEN enables the external ROM onto the Port 0 address/data bus during fetch and MOVC operations. PSEN goes to a high state during reset with a weak pull-up. XTAL1 Crystal 1. This is ...
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BLOCK DIAGRAM RAM 256 Bytes W78L32/W78L032A/W78M032A SFR CPU Data Bus CORE Interrupt - 6 - Port 0 Port 1 Alternate Tim er 2 Port 2 Port 3 Alternate Serial Port Timer 0 Tim er 1 INT 0 INT 1 ...
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FUNCTIONAL DESCRIPTION The W78L32 architecture consists of a core controller surrounded by various registers, four general purpose I/O ports, 256 bytes of RAM, three timer/counters, and a serial port. The processor supports 111 different instruction and references both a ...
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Reset The external RESET signal is sampled at S5P2. To take effect, it must be held high for at least two machine cycles while the oscillator is running. An internal trigger circuit in the reset line is used to deglitch ...
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DC Characteristics, continued PARAMETER Input Low Voltage P0, P1, P2, P3, EA Input Low Voltage RST Input Low Voltage XTAL1 [*4] Input High Voltage P0, P1, P2, P3, EA Input High Voltage RST Input High Voltage XTAL1 [*4] Output Low ...
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AC CHARACTERISTICS The AC specifications are a function of the particular process used to manufacture the part, the ratings of the I/O buffers, the capacitive load, and the internal routing capacitance. Most of the specifications can be expressed in ...
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Data Read Cycle PARAMETER ALE Low to RD Low RD Low to Data Valid Data Hold after RD High Data Float after RD High RD Pulse Width Notes : 1. Data memory access time ...
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TIMING WAVEFORMS Program Fetch Cycle S1 S2 XTAL1 ALE PSEN PORT 2 T AAH PORT 0 A0-A7 Code Data Read Cycle S4 S5 XTAL1 ALE PSEN PORT 2 A0-A7 PORT 0 RD W78L32/W78L032A/W78M032A ...
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Timing Waveforms, continued Data Write Cycle S4 S5 XTAL1 ALE PSEN PORT 2 PORT 0 A0-A7 WR Port Access Cycle XTAL1 ALE T PDS PORT INPUT SAMPLE W78L32/W78L032A/W78M032A A8-A15 DATA OUT T DAD T T ...
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TYPICAL APPLICATION CIRCUITS Using External Program Memory and Crystal XTAL2 CRYSTAL 8 INT1 W78L32 ...
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Typical Application Circuits, continued Expanded External Data Memory and Oscillator OSCILLATOR 8 W78L32/W78L032A/W78M032A P0 AD0 AD0 EA ...
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PACKAGE DIMENSIONS 40-pin DIP 44-pin PLCC θ Seating Plane 1 G ...
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Package Dimensions, continued 44-pin QFP See Detail F Seating Plane W78L32/W78L032A/W78M032A θ Detail ...
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REVISION HISTORY VERSION DATE A2 October 2000 A3 April 20, 2005 A4 December 21, 2005 A5 March 7, 2006 Winbond products are not designed, intended, authorized or warranted for use as components in systems or equipment intended for surgical ...